data for SiO2 aerogel–incorporated geopolymer insulation materials

The contact angle between AG and NaOH was measured by contact angle tester (DSA20, Germany). The viscosity of GAMs slurry was measured using the DV3T rheometer from USA. Compressive strength of GAMs was measured at 7d and 28d by universal strength testing apparatus according to Chinese standard BG/T 17671-1999 (CS200, China). Density of GAMs at 28d was also recorded. The thermal conductivity of GAM samples at 28d was determined by the steady state thermal transmission properties using a heat flow meter apparatus (DD300F-D15 from Foreda, China).The interfacial zone between AG and matrix and the microstructure of the samples was identified using a scanning electron microscope (SEM) (ZEISS-EVO18, Germany). Elemental compositions of CFA and AG were tested by XRF spectroscopy (PANalytical, Netherlands). The XRD patterns of CFA and AG were recorded using X-ray diffractometer (ARL, Switzerland).采用接触角测试仪（DSA20，德国）测定了AG与氢氧化钠（NaOH）的接触角。采用美国产DV3T流变仪测定了GAMs浆料的黏度。依据中国国家标准BG/T 17671-1999，采用万能强度测试装置（CS200，中国）于7d和28d龄期测定了GAMs的抗压强度，并记录了28d龄期GAMs的密度。采用中国Foreda公司DD300F-D15型热流仪装置，通过稳态热传递特性法测定了28d龄期GAM试样的导热系数。采用扫描电子显微镜（SEM，ZEISS-EVO18，德国）对AG与基体之间的界面区以及试样的微观结构进行了表征。采用X射线荧光光谱（XRF，PANalytical，荷兰）测试了CFA与AG的元素组成。采用X射线衍射仪（ARL，瑞士）记录了CFA与AG的X射线衍射（XRD）图谱。